| Publication number | CA1191157 A1 |
| Publication type | Grant |
| Also published as | CA1191157A, DE3139238A1, EP0076448A1, EP0076448B1, US4518813 |
| Publication number | CA 1191157 A1, CA 1191157A1, CA-A1-1191157, CA1191157 A1, CA1191157A1 |
| Export Citation | BiBTeX, EndNote, RefMan |
| External Links: CIPO, Espacenet | |
